Finite Group Databasebeta

#34174990

order20224
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7092

Subgroups

subgroupG/H
centerC22#19098307
commutatorC4×C8×C79C2×C4
FrattiniC82C2×D79
FittingC79×#1709C2
socleC22×C79#331
prime radical#493×C79C4
cosocleC82×C79C22
hypercenter#1709D79
hypocenterC79#7092
LCSG ▷ C4×C8×C79 ▷ C42×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C42 ◁ C82 ◁ #1709

152 conjugacy classes of subgroups; only the 51 normal subgroups are shown.

normal subgroups only

This group has 152 conjugacy classes of subgroups — too many to draw. Only its 51 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 111
transitive degreeμt(G) = 10112

A minimal faithful permutation representation — 2 generators on 111 points:

(1,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,79,77,75,73,71,69,67,65,63,61,59,57,55,53,51,49,47,45,43,41,39,37,35,33,31,29,27,25,23,21,19,17,15,13,11,9,7,5,3)(81,85)(82,89)(83,92)(86,88)(87,95)(90,91)(96,97)(98,107)(99,105)(100,104)(101,103)(102,108)(106,110)(109,111);(2,3)(4,5)(6,7)(8,9)(10,11)(12,13)(14,15)(16,17)(18,19)(20,21)(22,23)(24,25)(26,27)(28,29)(30,31)(32,33)(34,35)(36,37)(38,39)(40,41)(42,43)(44,45)(46,47)(48,49)(50,51)(52,53)(54,55)(56,57)(58,59)(60,61)(62,63)(64,65)(66,67)(68,69)(70,71)(72,73)(74,75)(76,77)(78,79)(80,81,82,87,83,86,90,94,84,88,91,95,92,85,89,93)(97,102,103,110)(98,106)(99,100)(104,107,105,111)(108,109)

Polycyclic presentation:

2^8,79|a^2=d,c^2=fh,d^2=ef,e^2=g,f^2=h,b^a=bc,c^a=ce,e^a=eg,f^a=fg,i^a=i^78,c^b=cf,d^b=defg,e^b=eg,f^b=fh

Conjugacy classes & character table

1525 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 56289);